Three sided toothbrush



FIG. 1 is a top, front perspective view of a three sided toothbrush showing my new design;

FIG. 2 is a top, rear perspective view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top, front perspective view of the toothbrush further illustrating the environment in which it is used;

FIG. 8 is a side elevation view of the toothbrush as shown in FIG. 7; and,

FIG. 9 is a bottom plan view of the toothbrush as shown in FIG. 7.

The broken lines showing a handle in all of the views and elements on the head in FIGS. 7-9 illustrate environmental structure that forms no part of the claimed design. 

The ornamental design for a three sided toothbrush, as shown and described. 